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Astronomers Identify 514 of the Most Powerful Objects in the Universe, Have No Clue What 65 of Them Are »

A new map of the universe created with data from the Fermi Space Telescope has identified the 514 most highly energetic objects in the known universe. The slightly unnerving part of that news -- researchers have exactly no idea what 65 of those objects, which are throwing off more than 10 gigaelectronvolts of gamma ray energy, are. These sources could be standard high energy objects -- like blazars -- that simply haven't been properly identified yet, or they could be an entirely new class of object never before seen on the cosmic landscape. Source Main page (current trends)

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